2008 RENAULT SCENIC tyre pressure

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Parameter summary table87B
87B - 240
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Parameter summary table87B
87B - 240V9 MR-372-J84-87B000$645.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Parameter summary table
Tool parameter Diagnostic tool title
PR001Battery voltage
PR002External temperature
PR003Front left-hand wheel pressure
PR004Front right-hand wheel pressure
PR005Rear right-hand wheel pressure
PR006Rear left-hand wheel pressure
PR008Vehicle speed
PR009Front wheel low speed recommended pressure
PR010Rear wheel low speed recommended pressure
PR011Rear wheels high-speed recommended pressure
PR012Front wheel high speed recommended pressure
PR013Number of cards programmed
PR014Left/right pressure difference threshold
PR015Low under-inflation threshold
PR017Cold over-inflation threshold
PR018Warm over-inflation threshold
PR019Front left-hand tyre temperature
PR020Front right-hand tyre temperature
PR021Rear right-hand tyre temperature
PR022Rear left-hand tyre temperature
PR023Heat difference threshold between wheels
PR059Puncture report threshold
MR-372-J84-87B000$645.mif

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -243
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -243V9 MR-372-J84-87B000$688.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
PR003
PR004
PR005
PR006FRONT LEFT-HAND WHEEL TYRE PRESSURE
FRONT RIGHT-HAND WHEEL TYRE PRESSURE
REAR RIGHT-HAND WHEEL TYRE PRESSURE
REAR LEFT-HAND WHEEL TYRE PRESSURE
NOTESThere must be no faults present.
Carry out this fault finding procedure after detecting a discrepancy in the parameter
displays.
When communication is established, the default value of the parameters is displayed (0 bar). By creating
a leak or using a road test, force each valve to transmit to discover the actual pressure levels measured
by the sensors during the fault finding procedure.
In all cases, compare whether the pressures displayed on the diagnostic tool correctly match the readings on the
pressure gauge (to within 0.2 bar).
If the readings do not correspond, you may encounter two possible scenarios:
1st case: The parameters still display 0 bar.
This means that the wheel valve codes do not correspond to the wheel set programmed into the UCH. (When the
UCH receives the valve codes, it will not recognise them because they do not correspond to the wheel set codes
already programmed, which are the only ones it will recognise). To rectify this:
Start the programming procedure using command SC002 Program the 4 valve codes (see Configurations and
programming).
2nd case: Parameters PR003 to PR006 display incorrect values (other than 0 bar).
If the pressures differ, there is a fault on the valve. Replace the faulty valve. Follow programming procedure: SC002
(see Configurations and programming).
After programming, repeat the fault finding procedure from the beginning.
AFTER REPAIRRepeat the check from the start.
UCH_V44_PR003/UCH_V48_PR003/UCH_V4C_PR003/UCH_V4D_PR003/UCH_V4F_PR003/UCH_V50_PR003/UCH_V44_PR004/
UCH_V48_PR004/UCH_V4C_PR004/UCH_V4D_PR004/UCH_V4F_PR004/UCH_V50_PR004/UCH_V44_PR005/UCH_V48_PR005/
UCH_V4C_PR005/UCH_V4D_PR005/UCH_V4F_PR005/UCH_V50_PR005/UCH_V44_PR006/UCH_V48_PR006/UCH_V4C_PR006/
UCH_V4D_PR006/UCH_V4F_PR006/UCH_V50_PR006

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -245
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -245V9 MR-372-J84-87B000$688.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
* FR: Front
* RR: Rear
PR009
PR010
PR011
PR012FR* WHEEL LOW SPEED REC* PRESSURE
RR* WHEEL LOW SPEED REC* PRESSURE
RR* WHEEL HIGH SPEED REC* PRESSURE
FR* WHEEL HIGH SPEED REC* PRESSURE
NOTESThere must be no present or stored faults.
Carry out this fault finding procedure after detecting a discrepancy between the
pressures recommended by the manufacturer and those stored in the UCH.
Warning:
Use Workshop Repair Manual 364 (Mégane II) or 370 (Scénic II) or refer to the
pressure label attached to the driver's door to obtain the recommended pressures for
the tyres actually installed on the vehicle.
If, after comparing with the manufacturer's data (see MR 364 (Mégane II) or MR 370 (Scénic II), 35A), the
recommended pressures stored in the UCH do not conform, reprogram the recommended pressures using
command VP005 Enter recommended pressures (see Configurations and programming).
If the recommended pressures cannot be entered properly, contact Techline.
AFTER REPAIRRepeat the check from the start.
UCH_V44_PR009/UCH_V48_PR009/UCH_V4C_PR009/UCH_V4D_PR009/UCH_V4F_PR009/UCH_V50_PR009/UCH_V44_PR010/
UCH_V48_PR010/UCH_V4C_PR010/UCH_V4D_PR010/UCH_V4F_PR010/UCH_V50_PR010/UCH_V44_PR011/UCH_V48_PR011/
UCH_V4C_PR011/UCH_V4D_PR011/UCH_V4F_PR011/UCH_V50_PR011/UCH_V44_PR012/UCH_V48_PR012/UCH_V4C_PR012/
UCH_V4D_PR012/UCH_V4F_PR012/UCH_V50_PR012

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -299
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -299V9 MR-372-J84-87B000$860.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
TYRE PRESSURE MONITOR
"ADJUST TYRE PRESSURE" MESSAGE APPEARS (WHEEL
CONCERNED IS HIGHLIGHTED ON THE DISPLAY)ALP52
"ADJUST TYRE PRESSURE" MESSAGE APPEARS (2 WHEELS
BECOME HIGHLIGHTED ON THE DISPLAY)ALP53
"TYRE SENSOR FAULT" MESSAGE APPEARS (WHEEL WARNING
LIGHT DISAPPEARS)ALP54
"TYRE SENSOR FAULT" MESSAGE APPEARS (4 WHEEL WARNING
LIGHTS DISAPPEAR)ALP55
"PUNCTURE: CHANGE WHEEL" MESSAGE APPEARS (THE WHEEL
IS HIGHLIGHTED ON THE DISPLAY)ALP56

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 347
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 347V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP27 Locking/unlocking fault when pressing card button.
NOTESCheck that there is no APC or card in the card reader.
Check that no opening element is detected as open by the UCH (look at the symbol on
the instrument panel).
First carry out a function fault finding check.
Test with the other card.
Check the condition of the battery (inserted the wrong way round, flat, incorrect
model).
If the fault is still present after having carried out a test with the other card, it could be that:
–There may be radiofrequency interference in the area (ET066 Card button press received is NO for both
cards). Move the vehicle to try again.
–The UCH which has just been replaced does not have the correct part number (external or internal UCH
aerial). Use the correct UCH part number.
–If the vehicle is a Scenic II fitted with a tyre pressure monitoring system, check that the external UCH aerial
is connected correctly.
–Check that the UCH for the vehicle is not blank. Check that the UCH on the vehicle has not been used on
another vehicle.
Check that statuses ET066 Card button press received and ET067 Card button press recognised are YES
after pressing the card's lock or unlock button.
If not, apply the fault finding procedures for those statuses.
Check that statuses ET066 Card button press received and ET067 Card button press recognised are YES
after pressing the card's lock or unlock button.
If not, apply the fault finding procedures for those statuses.
Check that status ET014 Control power level is not APC.
If not, apply the fault finding procedures for this status.
Check that statuses ET041 Opening rear screen, ET042 Passenger's door, ET050 Tailgate/Boot, ET051 Rear
left-hand door, ET052 Rear left-hand door and ET053 Driver's door are CLOSED.
If not, apply the fault finding procedures for those statuses.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP27 /UCH_V48_ALP27/UCH_V4C_ALP27/
UCH_V4D_ALP27/UCH_V4F_ALP27/UCH_V50_ALP27

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -367
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -367V9 MR-372-J84-87B000$989mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP42The vehicle does not start, the after ignition feed fails in hands-
free mode but works with the card in the card reader
NOTESFirst carry out a function fault finding check.
Test with the other card.
Switching to + accessories feed should work.
If not deal with ALP39 Accessories feed not activated first.
Check that the start-up conditions are met:
Check that the tailgate is detected as closed by the UCH using status ET050 Tailgate/
Boot.
Carry out the tests with the other cards allocated to the vehicle.
The card may be inhibited or the vehicle was not unlocked electrically: unlock by pressing the card button and
check if the hands-free starting fault is still present.
If the hands-free starting fault affects only one card:
Check that the card battery has been inserted the right way round. If the battery is flat or an incorrect model is being
used, replace the battery. If not, replace the faulty card.
If the hands-free starting fault affects every card:
Make sure the UCH is properly configured for hands-free operation. Reconfigure if necessary.
Make sure that the cards belong to the vehicle and are properly configured by running command SC005 Check
card.
If the cards belong to the vehicle but are incorrectly configured, program the cards.
Run command AC037 Transmitter aerial fault finding and see if a fault appears.
In the event of a present or stored fault, refer to the procedure for it.
If the vehicle is fitted with a tyre pressure monitor (Scénic II only), check that the external UCH aerial is correctly
connected.
Run command AC036 Interior aerial test and check the card coverage zone.
The card reader starts to flash as soon as a card is detected in the coverage zone.
The card should not be detected by the internal aerials when it is outside the vehicle.
If not correct, apply the relevant fault finding procedure for each command.
This mode allows of a Mégane hands-free type card to be detected as present, but not recognised.
Check the part number of the UCH and that it is hands-free.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP42 /UCH_V48_ALP42/UCH_V4C_ALP42/
UCH_V4D_ALP42/UCH_V4F_ALP42/UCH_V50_ALP42

87B-385
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V9 MR-372-J84-87B000$990.mif
87B
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
Note: In Vdiag 44 vehicles, the Service warning light comes on with the instrument panel message.
ALP 52"Adjust tyre pressure" message appears
(the wheel concerned is highlighted on the display)
NOTESCheck that all the faulty tyres are fitted with tyre pressure monitor valves.
Make sure the tyre has the recommended
pressure specified on the label or in the
driver's handbook (not under- or over-
inflated).
Are the tyres at the recommended
pressures?Readjust the tyre inflation pressure.
Read the pressures in PR003
to PR006.
Do PR003 to PR006 match
the readings taken with the
pressure gauge (to within
0.2 bar)?Read the recommended
pressures in the UCH
(PR009 to PR012)
Do the values of these
parameters match the
manufacturer's
recommended
pressures?Write the recommended
pressures with command
VP005 Enter
recommended
pressures.
Program the four valve codes and reinstall the coloured rings in the
position indicated on the label on the driver's side.
NO
YES
YES
NO
ANO
YES
UCH_V44_ALP52 / UCH_V48_ALP52 / UCH_V4C_ALP52 / UCH_V4D_ALP52 / UCH_V4F_ALP52 / UCH_V50_ALP52
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart

87B-386
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V9 MR-372-J84-87B000$990.mif
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP 52
CONTINUED
Check the tyre pressure with
another gauge.
Does the new reading indicate
variation from the first gauge?
Adjust the tyre pressure,
taking into account the
pressure gauge variation.
Replace the faulty sensor(s).
A
NO
NO
YES